JMA reported that the eruption at Nishinoshima had been particularly vigorous since mid-June, producing a large amount of ash.
Based on satellite data, the Tokyo VAAC reported that during 1-3 and 5-7 July ash plumes rose to 2.7-4.9 km (9,000-16,000 ft) a.s.l.
and drifted N and NW, and sometimes SW.
On 4 July, ash plumes rose to 8.3 km above the summit (or to 24,000-28,000 ft.
a.s.l.), the highest recorded plume since the volcano became active in 2013.
Sources: Japan Meteorological Agency (JMA) ,Tokyo Volcanic Ash Advisory Center (VAAC)
Bulusan (Philippines)
